I've been giving this mystery specimen, and although I have established the strainer beak, typical of anseriform species, NONE of the skulls I have seen show the cranial knob! it has been so frustrating since when I have seen pictures that resemble the skull, either the knob is missing or the beak doesnt fit. this bird is killing me, laughing in my face.. AHHH please help
Hello Eva. When I saw the bill, I thought 'duck'. But I had no luck with ducks, so I tried 'goose'. There is a bird called a Horn Billed Goose that this skull may have come from. I am having difficulty finding the latin name .... will get back to you. Hope this helps.